agenttesla | 6a63819738385d60f583acfbcb69a59b90ea4b47924a60df0f4c52467bc7ffbc

General

Target

AO-202005_pdf.exe
Size

425KB
MD5

b4fa8f2e8f3d1d6f0f623320ffe2c3a4
SHA1

94eaad01c0a72e5667b07946046d17f9130484d9
SHA256

81534a23f49b6824f8330f9e4943dcfcc6b4acc6ff71b31d729aaa889ec72083
SHA512

102b19aa1dde858cd2fffe1b1645cc1331d227eb55db2ddc5f43584ea75fe356f94ff9f285d8721380a587edb026c462a79ea49ed7b875b63461d1b571305614

Score

10^/10

agenttesla collection keylogger rezer0 spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.parshavayealborz.com
Port:
587
Username:
[email protected]
Password:
P@rshava123456

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

AgentTesla Payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/944-61-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/944-62-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/944-64-0x00000000004471BE-mapping.dmp	family_agenttesla
behavioral1/memory/944-63-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/944-66-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla
behavioral1/memory/944-68-0x0000000000400000-0x000000000044C000-memory.dmp	family_agenttesla

ReZer0 packer 1 IoCs

Detects ReZer0, a packer with multiple versions used in various campaigns.

rezer0

Processes:

resource	yara_rule
behavioral1/memory/2020-57-0x0000000002020000-0x0000000002074000-memory.dmp	rezer0

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts RegSvcs.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

AO-202005_pdf.exe

description pid process target process

PID 2020 set thread context of 944 2020 AO-202005_pdf.exe RegSvcs.exe
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

REG.exe

pid process

1648 REG.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegSvcs.exe

pid process

944 RegSvcs.exe
944 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegSvcs.exe

description pid process

Token: SeDebugPrivilege 944 RegSvcs.exe

description	pid	process	target process
PID 2020 set thread context of 944	2020	AO-202005_pdf.exe	RegSvcs.exe

pid	process
1648	REG.exe

pid	process
944	RegSvcs.exe
944	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	944	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

AO-202005_pdf.exeRegSvcs.exe

description	pid	process	target process
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 2020 wrote to memory of 944	2020	AO-202005_pdf.exe	RegSvcs.exe
PID 944 wrote to memory of 1648	944	RegSvcs.exe	REG.exe
PID 944 wrote to memory of 1648	944	RegSvcs.exe	REG.exe
PID 944 wrote to memory of 1648	944	RegSvcs.exe	REG.exe
PID 944 wrote to memory of 1648	944	RegSvcs.exe	REG.exe

outlook_office_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

Processes:

RegSvcs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\AO-202005_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\AO-202005_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2020

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
"{path}"
2⤵
- Drops file in Drivers directory
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
PID:944

C:\Windows\SysWOW64\REG.exe
REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System / v DisableTaskMgr / t REG_DWORD / d 1 / f
3⤵
- Modifies registry key
PID:1648

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

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Downloads

memory/944-63-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/944-58-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/944-59-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/944-61-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/944-62-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/944-64-0x00000000004471BE-mapping.dmp

Download
memory/944-66-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/944-68-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1648-70-0x0000000000000000-mapping.dmp

Download
memory/2020-55-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download
memory/2020-56-0x00000000005E0000-0x00000000005E8000-memory.dmp

Filesize
32KB

Download
memory/2020-57-0x0000000002020000-0x0000000002074000-memory.dmp

Filesize
336KB

Download
memory/2020-54-0x0000000000890000-0x0000000000900000-memory.dmp

Filesize
448KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads